Blue Coaxial Cable 9.71cm Samsung Galaxy A40

Antenna Coaxial Cable for Samsung Galaxy A40: Network Signal Restoration

This coaxial cable for Samsung Galaxy A40 restores the radiofrequency interconnection between the main board and the secondary charging board. This is an essential part to recover the correct transmission of mobile signal and cellular network on the mobile phone.

Technical Specifications

• Part type: Antenna coaxial cable
• Compatibility: Samsung Galaxy A40 (SM-A405F, SM-A405FN, SM-A405FM)
• Length: 9.71 cm
• Colour: Blue
• Quality: Compatible

When to Replace

• Very weak or fluctuating mobile network signal — confirm the diagnosis
• Mobile phone without service or constantly searching for network after disassembly
• Antenna cable damaged, pinched in the frame or with a broken connector
• Loss of network connection after screen or chassis replacement

Notes for the Technician

• Test before applying: connect the part to the equipment and confirm its operation before fixing or gluing it definitively. Thus, if there is any problem, the return or warranty is handled in a quick and simple way.
• Intervention difficulty: Medium.
• Requires the removal of the back cover and the middle frame to access the boards.
• Fit the coaxial connectors into the sockets with vertical precision so as not to bend the central pins.
• House the 9.71cm cable in the respective side channel of the chassis to prevent it from being pinched when closing the mobile phone.

What Distinguishes This Version

High-range compatible part with reliable finish on the radiofrequency sockets, ideal for technicians performing professional bench repairs. Ensures connection integrity with a balanced cost-benefit ratio for the customer.

Frequently Asked Questions

What is the function of the blue coaxial cable in the Samsung Galaxy A40?
It performs the physical conduction of the radiofrequency signal from the bottom antenna (sub-board) to the main board of the equipment.

Does this cable work in other models of the Galaxy line?
No, the 9.71cm length and connectors were designed specifically for the internal layout of the Samsung Galaxy A40.